Build powerfull and smart web applications with Symfony2

Build smart and powerful web applications with Symfony2

Built around standalone and decoupled components…

… and a full-stack framework based on those components

Application bundles Third party bundles The Symfony2 stack Core Bundles Third party libraries Standalone Components

« A Bundle is a directory that has a well-de nedstructure and can host anything from classes to controllers and web resources. »

What makes Symfony2 unique?

Symfony2 follows standards & best practices -  RFC2616 -  PHPUnit -  Jinja Templates -  Design Patterns

Symfony is now easier to install and con gurehttp://symfony.com/download

Several distributions available Download the Standard Edition that hosts the framework, standard bundles and a default application architecture.

Easy installation and con guration

Web con gurationCon gure the database access parameters

Start to use Symfony2 and happy coding J

Want to give it a try?

Symfony2 Philosophy « Basically, Symfony2 asks you to convert a Request into a Response »

Request handling class DefaultController extends Controller { /** * @extra:Route("/hello/{name}") */ public function indexAction($name) { // ... do things return new Response(sprintf(Hello %s!, $name)); } }

Request handling class DefaultController extends Controller { /** * @extra:Route("/hello/{name}") */ public function indexAction($name) { // ... do things return $this->render(HelloBundle:Default:index.html.twig, array(name => $name)); } }

Request handling class DefaultController extends Controller { /** * @extra:Route("/schedule") * @extra:Template */ public function indexAction() { $title = Confoo 2011 Conferences Schedule; return array(title => $title); } }

Templating{% extends "ConfooConferenceBundle::layout.html.twig" %}{% block content %} <h1> {{ title }} </h1> <ul> <li>Caching on the Edge, by Fabien Potencier</li> <li>HipHop for PHP, by Scott Mac Vicar</li> <li>XDebug, by Derick Rethans</li> <li>...</li> </ul>{% endblock %}

TWIG Template EngineTwig is a modern template engine for PHP §  Fast §  Concise and rich syntax §  Automatic output escaping §  Modern features §  Extensible §  Flexible

Template inheritance{% extends "ConfooConferenceBundle::layout.html.twig" %}{% block content %} <h1> {{ title }} </h1> <ul> <li>Caching on the Edge, by Fabien Potencier</li> <li>HipHop for PHP, by Scott Mac Vicar</li> <li>XDebug, by Derick Rethans</li> <li>...</li> </ul>{% endblock %}

Template inheritance{% extends "::base.html.twig" %}{% block body %} <img src="/images/logo.gif" alt="Confoo 2011"/> {% block content %}{% endblock %}{% endblock %}

Template inheritance<!DOCTYPE html><html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>{% block title %}Welcome!{% endblock %}</title> <link rel="shortcut icon" href="{{ asset(favicon.ico) }}" /> </head> <body> {% block body %}{% endblock %} </body></html>

Template inheritance base.html.twig layout.html.twig index.html.twig

Smart URIs

Smart URIs Typical PHP URIs suck!!!

Smart URIs Native routing mechanism

Smart URIs class DefaultController extends Controller { /** * @extra:Route("/{year}/talk/{month}/{day}/{slug}") * @extra:Template */ public function showAction($slug, $day, $month, $year) { // Get a talk object from the database $talk = ...; return array(talk => $talk); } }

Parameter converter class DefaultController extends Controller { /** * @extra:Route("/talk/{id}") * @extra:Template */ public function showAction(Talk $talk) { return array(talk => $talk); } }

Easy Debugging

The Web Debug ToolbarSymfony2 version environment environment PHP Current Current response RecordedTimers Memory logs Queries

Exception stack traces

Recorded logs

The Pro ler application

Database Management

Doctrine 2 Library §  Database Abstraction Layer on top of PDO §  Object Relational Mapper §  Migrations support §  Object Document Mapper (MongoDB) §  Object XML Mapper (XML databases)

De ning entities as POPO/** * @orm:Entity */ class Talk { /** * @orm:Id * @orm:GeneratedValue * @orm:Column(type="integer") */ public $id; /** @orm:Column(length=80, nullable=false) */ public $title; /** @orm:Column(type="text") */ public $synopsis; /** @orm:Column(type="datetime") */ public $schedule; /** @orm:ManyToMany(targetEntity="Speaker", mappedBy="talks") */ public $speakers; }

Validation

Validation §  Validate POPOs (properties & methods) §  Easy con guration with annotations §  Easy to customize and extend

Validating Plain PHP Objects class ContactRequest { /** @validation:NotBlank */ public $message; /** * @validation:Email * @validation:NotBlank */ public $sender; } }

Forms Handling

Forms management§  Transparent layer on top of your domain object§  Native CSRF protection§  Coupled to the Validation framework§  Twig integration

Designing a basic form class namespace ConfooContactBundleForm; use SymfonyComponentFormForm; use SymfonyComponentFormTextField; use SymfonyComponentFormTextareaField; use SymfonyComponentFormCheckboxField; class ContactForm extends Form { protected function configure() { $this->add(new TextField(sender))); $this->add(new TextareaField(message)); } }

Processing a form public function contactAction() { $contactRequest = new ContactRequest(); $form = ContactForm::create(...); $form->bind($this->get(request), $contactRequest); if ($form->isValid()) { // do things with validated data } return array(form => $form); }

Prototyping the rendering with Twig {% extends ConfooContactBundle::layout.html.twig %} {% block content %} <form action="#" method="post"> {{ form_field(form) }} <input type="submit" value="Send!" /> </form> {% endblock %}

Functional Testing

Functional testing Simulating an end-user browsing scenario and testing the Response

Functional Testingclass DefaultControllerTest extends WebTestCase{ public function testIndex() { $client = $this->createClient(); $crawler = $client->request(GET, /schedule); $this->assertTrue( $crawler->filter(html:contains("Fabien Potencier"))->count() > 0 ); $this->assertTrue($client->getResponse()->headers->has(expires)); }}

HTTP Compliance (RFC2616)

Expiration / Validation

Expiration with Expires class DefaultController extends Controller { /** * @extra:Route("/schedule") * @extra:Template * @extra:Cache(expires="tomorrow") */ public function indexAction() { $title = Confoo 2011 Conferences Schedule; return array(title => $title); } }

Expiration with Cache-Control class DefaultController extends Controller { /** * @extra:Route("/schedule") * @extra:Template * @extra:Cache(maxage="20", s-maxage="20") */ public function indexAction() { $title = Confoo 2011 Conferences Schedule; return array(title => $title); } }

Native PHP Reverse Proxy Cache

Varnish / Squid

Edge Side Includes<esi:include src="http://..." />

SecurityAuthentication & Authorization

Thank You!

http://blog.stfalcon.com	851
http://www.lincubateurtoulousain.net	90
http://www.berejeb.com	24
http://www.sfexception.com	7
http://www.devetdesign.com	4
http://feeds.feedburner.com	4
http://www.techgig.com	3
http://livestreet.test	3
http://translate.googleusercontent.com	2
http://a0.twimg.com	2
http://www.alertize.com	1
http://tweetedtimes.com	1

Build powerfull and smart web applications with Symfony2

by Hugo Hamon

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